Sad-iron.



P. R. SHA1-"Fm SAD IRON.

APPLIOATION FILED APR. 6, 1903.

Patented June 14,1910.

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SAD IRON.

APPLIUATION FILED APB. 6,1903.

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SAD IRON.

APPLICATION FILED APR. 6,1908.

- .9619379 Patented June 14,1910.

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/3 WM A 1 FREDERICK R. SHAFEER, OF NEW YORK, N. Y., ASSIGNOR TO NEW YORK FLATIRON COMPANY, A CORPORATION 0F NEW YORK.

. SAD-IRON.

Specification of Letters Patent.

Application ined Aprii c, 190s.

Patented June 14, 1910.

serial No. 425,394.

To all whom it may concern.'

Be it known that I, FREDERICK R. SHA1- FER, a citizen of the United States, residing at New York city, New York, have invented certain new and useful Improvements in Sad-Irons, of which the following is a clear, full, and exact description.

This invention relates to that class of iron in which areservoir is provided for liquid fuel and a nozzle projecting a vapor into a hollow iron body is used.

The object of this invention is to provide an improved sad iron which will burn liquid fuel and which may be readily started and easily controlled.

Further objects of the invention are to provide an iron which will burn alcohol as a fuel, will carry as a self contained structure its starting means, will insure the delivery of vapor to the nozzle and in various improvements in construction which will be pointed out in the claims.

In carrying out the invention I provide means for taking vapor and not liquid from the reservoir. I provide a superheater between the reservoir and nozzle to insure that the vapor will not condense en route to the nozzle; I provide a starting burner at one end of the reservoir so disposed as to heat the reservoir, nozzle and connections when the iron is stood upon its end; I provide a stamped shell with a solid heat conveying core and other improvements in construction, which will be a parent upon perusal of the following speci cation.

In the accompanying drawings, Figure 1 is a side elevation of my improved sad iron. Fig. 2 is a partial side elevation taken in central section of the same. Fig. 3 is a rear end elevation. Fig. 4 is a front end elevation. Fig. 5 is a section on line 5 5 Fig. 1 of the iron body. Fig. 6 is a section on line 6-6 Fig. 7. Fig. 7 is a plan of the shell. Fig. 8 is a view of a detail of Fig. 2, showing the nozzle and part of the connecting piping in side elevation, and the remainder of the piping, the superheater and the mixing tube in vertical section. Fig. 9 is an enlarged detail of the nozzle, its casing being shown in section the section being taken as a central horizontal plan. Fig. 10 is a sectional detail of the stem of the valve, showing a modified form of valve stem. Fig. 11 is an enlarged view of the nozzle shown in side elevation, and a vertical section of the mixing chamber.

As shown in the drawings the iron comprises in main part, a body part 1, a superposed fuel reservoir 2, a handle 3 and supporting standards 4 and 5 therefor, and a nozzle for injecting combustible vapor into the hollow iron body.

The iron body 1 is formed of a metal shell 6 having an outwardly projecting rim 7 forming a shoulder on the two sides of the iron body to support cover plates 8 and an interposed heat insulating sheath 9. In order to conserve and store the heat as is necessary in devices of this character, a heat conserver consisting of a cast block 10 with projecting lugs 11 is secured in the bottom of the shell 6, being secured by screws 12. The rear wall of the shell 6 is straight without a shoulder and is supplied with an orifice 13 for the passage of the valve stem, hereinafter describedl and also with orifices 14 for the admission of air into the hollow body. The two sides of the shell may also be pierced with` openings 15 for escape of combusted vapors, the openings 15 being above the surface of the heat conserving block 10.

The standard 5 for the support of handle 3 and reservoir 2 is composed of a central open ring 16 with projecting arms 17 and 18. The arm 18 may be secured to the nose of the shell 6, while one end of the handle 3 may be fastened to the arm 17. The reservoir 2 may pass into and be supported at one end of the open ring 16. The standard 4 is provided with a flanged ring 22 for the support of the rear end of the reservoir; it

has an upwardly extending arm 20, to which the handle is secured and below the reservoir it may be secured to the shell 6 by screws 21. The flange 22 fits and extends a slight distance along the reservoir in turn nearly surrounded by a flange or wall 23. A short tube or shell 24 tapering irregularly toward its inner end 25 is also formed in the standard 4, its outer end 26 being of the diameter of the orice 13. The wall 23 extends around such tube so that an 8 shaped channel will be formed between the wall 23 and the wall 22 and tube into which liquid may be poured and ignited when the iron is up ended and rests upon the legs 27, one on the handle 3 and two secured to the shell 6 in order to secure proper starting of the iron as will be more fully explained hereinafter. The shape of the standard 4 is shown in dotted lines Fig. 3 where it will be seen that it is also provided with apertures coinciding with the apertures 14 in the shell.

Indicators 28 and 29 may be carried on the standard bearing legends On and 01T respectively.

The reservoir 2 is preferably a cylindrical shell supported at each end as before described and in comparatively close contact with the cover plates 8. Careful attention must be observed to so regulate the asbestos or other heat insulating material 9 that sufficient heat will be conveyed to the reservoir during operation to sufliciently vaporize the fuel to createv pressure proper for feeding. The reservoir 2 is preferably fitted with a safety plug 30 stoppered by fusible metal 31 which will soften and blow out should the reservoir, through any unforseen cause, get toohot.

vA filling tube 32 extends a considerable distance within the reservoir shell and it may extend a short distance without the same. The advantage in extending it within the reservoir is to prevent the lling of the reservoir except as indicated in Fig. 2, thus insuring the feed of vapor and preventing the feed of liquid. A cross bar 33 is secured within the tube and screws 34 passed through it carrying the Valve body 35. A threaded stem 36 extends from the valve body 35 to outside the tube whereit may be engaged by a threaded closure cap 36 supplied with a handle or lever 37.

A supply pipe 38 leads from the uppermost forward corner of the reservoir through the wall thereof to a superheater composed of a drum 40, which, if desired, may contain coarse sand 39 or other material. A mixing tube 41 perforated on its lower face fits snugly the drum 40 and at its open end carries the nozzle casing 42. A pipe 43 from the drum 40 passes through the center of the mixing tube and communicates with a chamber 44 in the nozzle casing. The open end of the mixing chamber fits into the part 25 of the tube 24, before described.

. The vapor which passes into the chamber 44 passes out through the opening 45 which is tapered as shown in Fig. 9. The extent of the feed is determined by a spindle 46 having a tapered end 47 to fit the opening 45. The shank of the spindle is threaded into the nozzle casino` 42, a stufling box 46 supplied and a handle 47 secured between two nuts 48, 49 secured to the spindle for turning the same and thus controlling the effective size of the opening 45.

In operation the iron is stood on the legs at one end, the reservoir filled to the bottom of the filling tube, alcohol poured into the 8 shaped trough and the valve opened.

The alcohol in the trough is lightedY and its flames surround both -reservoir, mixing chamber and inclosed piping, and thus heat the nozzle and piping so that such vapor as may pass thereinto will not condense. No liquid can therefore pass through the nozzle to leak, burn, and cause damage. The vapor as it emerges from the nozzle, rises through the mixing chamber, ignites, and so soon as a brisk injection at the nozzle occurs the iron may be placed into normal horizontal position when the conducted heat to the reservoir will continue to keep up the pressure in the reservoir, inasmuch as said reservoir is within the zoneof radiated heat from said iron.

Should small quantities of alcohol get into the supply pipe through manipulation of the iron it will quickly be turned to gas as it passes through the superheater. l

The valve stem 46 shown in Fig. 10 has a central inner stem 50 which has a head 51 situated in a recess in one end of the stem 46 which recess is closed by a plug 52. This permits fine adjustment without necessitating expensive machine work upon the valve or the valve seat.

I claim as my invention:

1. A sad iron comprising an iron body, a toe and a heel end therefor, a superposed fuel reservoir immediately above said body, a nozzle to inject vapor into the interior of the iron body, and piping leading from said nozzle to the upper part of the reservoir near the toe of the iron, whereby vapor and not liquid will be fed to the nozzle, said piping leading to one end of the reservoir so that when the iron is stood on the heel end, vapor only will be fed.

2. A sad iron comprising an iron body, a toe and a heel end therefor, a superposed fuel reservoir immediately above said body, a nozzle located to inject vapor into the interior of the iron body, and piping leading from said nozzle to the up er part of the reservoir near the toe of the iron whereby vapor and not liquid will be fed to the nozzle, said piping leading to one end of the reservoir so that when the iron is stood on the heel end vapor only will be fed, and a chamber in the line of piping, and within the iron body.

3. A sad iron comprising an iron body, a toe and a heel end therefor, a superposed fuel reservoir immediately above said body, a nozzle located to inject vapor into the interior of the iron body, and piping leading from said nozzle through the iron body in the path of the direct heat from the nozzle to the upper part of the reservoir near the toe of the iron, whereby vapor and not liquid will be fed to the nozzle, said piping leading to one end of the reservoir so that when the iron is stood on the heel end vapor only will be fed.

4:. A sad iron comprising a hollow iron body having a heel end, a superposed fuel section, a nozzle and piping therefor, and a starting cup carried at the heel end of the iron, and located so that the flames which arise therefrom will pass upwardly and substantially surround the nozzle and piping when the iron is stood on its heel end, an extension to the cup adapted to heat the reservoir itself, when the iron is on its heel en 5. A sad iron comprising a hollow iron body, a superposed fuel reservoir, a nozzle and piping therefor, and a starting cup, carried at one end of the iron, the nozzle and piping being in a position where they are surrounded by the heat arising from said cup when the iron is stood on end, said starting cup comprising an open pan shaped as an 8.

6. A sad iron comprising a hollow iron body, a superposed fuel reservoir, a nozzle and piping therefor, carried at one end of the iron, the nozzle and piping being surrounded by the direct heat from the starting cup when the iron is stood on end, and means carried by the iron adapted to permit the iron to be stood on end with the starting cup horizontal.

Signed at New York city New York this 3rd day of April 1908.

FREDERICK R. SHAFFER.

Witnesses F. WARREN WRIGHT, MAREL DITTENHOEFER.

and a starting cup. 

